Patent US3261874A successfully refreshed from Google Patents.
US3261874A
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Preparation and polymerization of 1,4-pentadiene monoxide
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-08-22
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Granted: 1966-07-19
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Stogryn
- 👤 Anthony J Passannante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:35
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/14; C07; C07D; C07D303/00; C07D303/02; C07D303/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
HOMOPOLYMERS OF 1,4-PENTADIENE MONOXIDE CHARACTERIZED BY CONTAINING THE REACTING UNIT:
Claim 2
Dependent Claim
10 words
HOMOPOLYMERS OF 1,4-PENTADIENE MONOXIDE CHARACTERIZED BY CONTAINING THE REACTING UNIT:
Claim 3
Independent Claim
49 words
THE METHOD OF PREPARING HOMOPOLYMERS OF 1,4PENTADIENE MONOXIDE WHICH COMPRISES POLYMERIZING 1,4PENTADIENE MONOXIDE WITH AN EPOXIDE POLYMERIZATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PF5, KOH AND NAOCH3 AT A POLYMERIZATION REACTION TEMPERATURE IN THE RANGE OF -50*C. TO 150*C., AND RECOVERING A RESULTING HOMOPOLYMER HAVING THE RECURRING UNIT:
Claim 4
Independent Claim
49 words
THE METHOD OF PREPARING HOMOPOLYMERS OF 1,4PENTADIENE MONOXIDE WHICH COMPRISES POLYMERIZING 1,4PENTADIENE MONOXIDE WITH AN EPOXIDE POLYMERIZATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PF5, KOH AND NAOCH3 AT A POLYMERIZATION REACTION TEMPERATURE IN THE RANGE OF -50*C. TO 150*C., AND RECOVERING A RESULTING HOMOPOLYMER HAVING THE RECURRING UNIT:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |